News tagged with white dwarfs

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'Odd couple' binary makes dual gamma-ray flares

(PhysOrg.com) -- In December 2010, a pair of mismatched stars in the southern constellation Crux whisked past each other at a distance closer than Venus orbits the sun. The system possesses a so-far unique ...

dateJun 29, 2011 in Astronomy
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Probing the origins of extreme neutron stars

(PhysOrg.com) -- Neutron stars are the unimaginably dense corpses of what were once much more massive stars that died while being ripped apart in a supernova explosion. Their average density is typically more than one billion ...

dateMay 31, 2011 in Astronomy
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Binary white dwarf stars

(PhysOrg.com) -- When a star like our sun gets to be very old, after another seven billion years or so, it will no longer be able to sustain burning its nuclear fuel.

dateMay 04, 2011 in Astronomy
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Einstein@Home detects unusual stellar pair

(PhysOrg.com) -- Neutron stars are quite unique: the material they are made of is packed much more densely than conventional matter. They rotate extremely fast about their own axis, emitting radiation in the ...

dateApr 07, 2011 in Astronomy
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Two dying stars reborn as one (w/ video)

White dwarfs are dead stars that pack a Sun's-worth of matter into an Earth-sized ball. Astronomers have just discovered an amazing pair of white dwarfs whirling around each other once every 39 minutes. This ...

dateApr 06, 2011 in Astronomy
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Habitable planets and white dwarfs

(PhysOrg.com) -- The search for habitable planets similar to Earth has routinely focused around active nuclear burning stars. However, in a recently published paper by Eric Agol from the University of Washington, ...

dateMar 22, 2011 in Astronomy report
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Did GD61 eat a Planetessimal?

The primary method by which astronomers hope to study exoplanet atmospheres is by detecting their absorption spectra as they transit their parent stars. However, another way would be to detect the signal of ...

dateJan 06, 2011 in Astronomy
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Will V445 puppis become a Ia supernova?

As the “V” in the designation of V445 Puppis indicates, this star was a variable star located in the constellation of Puppis. It was a fairly ordinary periodic variable, although with a rather complex ...

dateDec 06, 2010 in Astronomy
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